19905830

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{284369}}^1$

素因数の和:284383

約数の個数: 16

約数和(自身を含む): 40949280

約数和(自身を除く): 21043450

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 284369, 568738, 1421845, 1990583, 2843690, 3981166, 9952915, 19905830]

約数ペア:

[(1, 19905830), (2, 9952915), (5, 3981166), (7, 2843690), (10, 1990583), (14, 1421845), (35, 568738), (70, 284369)]